Community reports said the camera looked too far back and the cockpit frames
were never this revealed; the user's hypothesis (our projection widens the
view) was exactly right. The original Tesla projection call, preserved in a
comment at DPLRenderer::SetView, is
dpl_SetViewProjection(view, -1, -aspect, +1, +aspect, 1/tan(viewangle/2))
i.e. BTDPL.INI's viewangle=60.0 is the HORIZONTAL field of view with the
vertical derived by aspect: the pod's frustum was 60 x 46.8 deg at 4:3. The
port fed the 60 to D3DXMatrixPerspectiveFovRH as the VERTICAL fov -> 75 x 60
at 4:3 (worse on widescreen): the world rendered ~25% farther away and far
more canopy was visible than the pod ever showed.
Fix: BTFovYFromHorizontal(viewangle, aspect) at all five projection sites
(main, per-frame resize, sky pass, WM_SIZE rebuild, fallback) -- the
horizontal field stays the authentic 60 deg at any window shape. The aim
boresight reads the live projection (gBTAimP22) and adapts; combat
re-verified (kill chain, no NaN). Cockpits now show the frames at the
pod's framing: viewports dominant, frames at the periphery.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
